After Ten Millennia in Hell - Vol. 1 Ch. 11

[MangaDex]

 

[PLaci1982]

Doesn't know a thing about the new and changed earth he came back to: Skips basic education...

 

[Manhwaf]

Doesn't know a thing about the new and changed earth he came back to: Skips basic education...

Not for everyone, but definitely for some, "With great power, comes great arrogance!"